/*
 * Wslay - The WebSocket Library
 *
 * Copyright (c) 2011, 2012 Tatsuhiro Tsujikawa
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#ifndef WSLAY_FRAME_H
#define WSLAY_FRAME_H

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */

#include <wslay/wslay.h>

enum wslay_frame_state {
    PREP_HEADER,
    SEND_HEADER,
    SEND_PAYLOAD,
    RECV_HEADER1,
    RECV_PAYLOADLEN,
    RECV_EXT_PAYLOADLEN,
    RECV_MASKKEY,
    RECV_PAYLOAD
};

struct wslay_frame_opcode_memo {
    uint8_t fin;
    uint8_t opcode;
    uint8_t rsv;
};

struct wslay_frame_context {
    uint8_t                        ibuf[512];
    uint8_t *                      ibufmark;
    uint8_t *                      ibuflimit;
    struct wslay_frame_opcode_memo iom;
    uint64_t                       ipayloadlen;
    uint64_t                       ipayloadoff;
    uint8_t                        imask;
    uint8_t                        imaskkey[4];
    enum wslay_frame_state         istate;
    size_t                         ireqread;

    uint8_t                oheader[14];
    uint8_t *              oheadermark;
    uint8_t *              oheaderlimit;
    uint64_t               opayloadlen;
    uint64_t               opayloadoff;
    uint8_t                omask;
    uint8_t                omaskkey[4];
    enum wslay_frame_state ostate;

    struct wslay_frame_callbacks callbacks;
    void *                       user_data;
};

#endif /* WSLAY_FRAME_H */
